EP 0561596 B2 20011219 - Oriented polyester film
Title (en)
Oriented polyester film
Title (de)
Orientierte Polyesterfolie
Title (fr)
Film orienté de polyester
Publication
Application
Priority
- JP 6344492 A 19920319
- JP 6344592 A 19920319
- JP 7109392 A 19920327
Abstract (en)
[origin: EP0561596A2] An oriented polyester film (A) which comprises modified polyethylene-2,6-naphthalenedicarboxylate containing a 4,4'-diphenyldicarboxylic acid component and having a heat of crystallization of 16 to 25.5 Joule/g, and (B) which is biaxially oriented; and an oriented polyester film (A') which comprises modified polyethylene-2,6-naphthalenedicarboxylate containing of a glycol component derived from a compound represented by the following formula, <CHEM> wherein each of n and m is independently a positive number of 1 to 9 as an average, provided that m + n equals 2 to 9 as an average. and having a heat of crystallization of 6 to 20 Joule/g, and (B) which is biaxially oriented. These films are useful as a base film for a magnetic recording tape or as an electric insulation film.
IPC 1-7
IPC 8 full level
C08G 63/185 (2006.01); C08G 63/672 (2006.01); C08J 5/18 (2006.01); H01B 3/42 (2006.01)
CPC (source: EP US)
C08G 63/185 (2013.01 - EP US); C08G 63/672 (2013.01 - EP US); C08J 5/18 (2013.01 - EP US); H01B 3/422 (2013.01 - EP US); C08J 2367/02 (2013.01 - EP US); Y10T 428/31786 (2015.04 - EP US)
Citation (opposition)
Opponent :
- US 3008934 A 19611114 - WIELICKI EDWARD A, et al
- JP S50135333 A 19751027
- US 4619869 A 19861028 - KIRIYAMA TSUTOMU [JP], et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0561596 A2 19930922; EP 0561596 A3 19940831; EP 0561596 B1 19980708; EP 0561596 B2 20011219; DE 69319472 D1 19980813; DE 69319472 T2 19990304; DE 69319472 T3 20030220; DE 69332122 D1 20020822; DE 69332122 T2 20030213; EP 0787760 A2 19970806; EP 0787760 A3 19980401; EP 0787760 B1 20020717; US 5312893 A 19940517; US 5352534 A 19941004
DOCDB simple family (application)
EP 93301954 A 19930315; DE 69319472 T 19930315; DE 69332122 T 19930315; EP 97201058 A 19930315; US 20392394 A 19940301; US 3210293 A 19930317